Automatic brake.



. APPLICATION FILED APR. 8, 1913 H. H. PHILLIPS.-

AUTOMATIC BRAKE.

Patented Jan. 27, 1914.

2 SHEETS-SHEET 1.

H. H. PHILLIPS.

AUTOMATIC BRAKE.

APPLIOATIOH FILED APR. 8, 1913.

1,085,476. Patented Jan. 27, 1914.

' 2 SHEETS-SHEET 2.

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, Welah, in the county of Stevens and St te f- UNITED sTATEs PATENT orricn HARRY H. rninmrs,

V s. SPEDDEN,

AUTOMATIC BRAKE.

\ T 0 all whom it mag concern: I

Be it'knoWn-that.I,1HaRRY PHILLIPS, citizen of the United States, residing at Chewashington have invented new and useful Improvements in Autom'atic Brakes, of whichthe following isa specification.

his inventionis an improved automatic brake for carriages-,wagons.andother vehicles, the object oftheinvention beingto provide an improved'hrake of v.this character which is very compact, is strong and durable,

is simple in construction and which operates automatically. s

.The invention combination consists in the construction, and arrangement of devlces hereinafter described and claimed..-

; I11 the acoo.mpanying drawings :Figure f 1 is an elevation-of an automatic brake ap- .20

paratus constructed in accordance with my invention, showing the-same in connection.-

With the front axle and the wheel of a carriage, the axle being indicated in cross section. Fig. 2-is. a sectional view of the same on the plane indicated by the line a-a of Fig. 1. Fig. 3 is a front elevation of the' samem For the p'urposes of this specification, the frontaxle of a vehicle is indicated at l and oneof the wheels at 2. On the inner side of the Wheel is a brake'wheel 3 secured thereto, concentrically therewith, the brake wheel be: ing provided with an inwardly channeled A friction ring 5 is arranged loosely in the channel ofvthe brakewheel and-bears on which 'is tangential thereto so that the bottoms of the said recesses form. inclined planes. In each recess isa friction roller 11 adapted when in the deepened end of the recess to be out of contactwith the friction ring and also adapted when the brake wheel moves independently of and angularly with respect to the friction ring to be moved out-,-

wardly. by the cam action of the bottoms of exte lin brake flange 4 the periphery of wh. h e5 and partially overeach brake wheel, is bolted at one end to 1 the recesses 8 into t on ring, sons to lock the latter to the frictron wheel, as will be understood.

extending arm 12 the said arms being secured to the axle by means .of clips 13 and arm 14 at its front end. Clips 15 are also secured with a forwardly extending upwardly inclined arm 16 and also with a forwardly and upwardly curved draft bar 17 which is concentricwith a the arm 16. a t

A brake shaft 119 which extends acrossthe and nearly from wheel to wheel is mounted in the bearingopenings l8, is-provided'at 'it'svends with upwardly and outwardlyextending curved arms 20 and is also provided, near its ends, with downwardly and for wardly extending draftarms 21 which are at substantially front ends bifurcated to form forks 22 through which the draft bars extend, the -draft barshaving T-heads 23 at their front ends which extend across the draft arms and, hence, serve to limit the forward movement thereof. The draft irons 24 of the thills or tongue are coupled in the forks. 22 by means of bolts 25 such as are usually employed and it will be understood that, hence, the draft of the tongues or thill is exerted first on the draft arms and when the vehicle is under draft tension the draft arms are in the initial position shown in Fig. 1 and bear against the T-heads 23 of the draft bars.

A brake belt spring 27 is provided for the arm 14 as at 28 and its free upper end, is bifurcated as at 29, provided with eyes 30 and connected by a bolt 31 which extends through said eyes to an eye bolt 32, the shank of which extends through an opening in one of the arms 20 and is adjustably secured thereto by means ofnuts 33-34.

contact with the periphery-of the friction the brake wheel which revolveswith one of the front vehicle wheels. When the horse or team is backed or the vehicle in descending a hill begins tomov'e faster, than the central bearing opening 18in right angles to the arms 20.. The said draft arms 21- have their lower ring 5 and thelatter is freeto revolvewith' OF GHEWE'LAH, WASHINGTON,;ASS IGNOR OF ONE-HALF TO I-IUGH OF CHEWELAH, WASHINGTON.

Patented Jan, 27, 1914. I 1913. seriainavsavlaf A engagement with the fric- Near each end of the axle is aforwardly j each having a downwardly extending curved v on the axle and eachis provided 0 carriage -111 front and above the front axle,

. Normally the spring brakebelt' is out of horse or'team, the back pressure of the thills or tongue onthe draft arms 21 causes the latter to move downwardly, thereby partly turning the brake shaft 19 and causing the arms 20 of the said brake shaft to move therewith and, hence, draw the spring brake belts against and in contact with the periphery of the friction rings5, thus checking the rotation of the friction rings and as the brake wheels continue to turn with the ve-- hicle wheels, the inclined bottoms of their recesses 8 move the friction rollers 11- outwardly, engage said friction rollers with the friction rings and thus lock the friction rings to the brake Wheels thus applying the brakes to the front vehicle wheels and, hence, checking the motion of the vehicle.

When the carriage is backed, the rollers 11 roll into the recesses 8, thus releasing the friction ring from the brake wheel and allfowilng the wheels to revolve rearwardly,

ree y.

While I have herein shown and described a preferred form of the invention, I would have vit understood that changes may be made in the form, proportion and construction of the several parts without departing from the spirit of the invention and within the scope of the appended claims.

I claim 2- 1. In vehicle brake apparatus in combination with spring brake belts, an axle, clips on the axle provided with bearings and also provided with curved draft bars concentric Withsaid bearings, a rock shaft mounted in said bearings and provided with upwardly extending arms and also with draft arms the latter serving for the attachmentof thills or a tongue and the said draft arms being so related to the said draft bars as to cause the latter to limit the extent of forward move- I withsaid bearings, a rock shaft mounted in.

said bearings and provided with upwardly extending arms and also with draft arms the latter serving for the attachment of thills or a tongue and the said draft arms being so related to the said draft bars as to cause the latter to limit the extent of forward movement of said draft arms and adjusting bolts carried by the upturned arms of the rock shaft and to which the spring brake belts are connected.

In testimony whereof I aiiix my signature in presence of two witnesses.

HARRY H. PHILLIPS.

Witnesses:

LULU C. Hown, J. W. PATTERSON, 

